Type-writing machine.



H. A. CARHART.

TYPE WRITING MACHINE.

APPLICATION FILED OCT. IB, I9I7.

Patented July 9, 1918.4

3 SHEETSSHEET l.

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HIS ATTIJRNEY M om. m.

H. A. CARHART.

TYPE WRITING MACHINE.

Patented 'July 9, 1918.

3 SHEETS-SHEET 2.

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HIS ATmRNEv IHEIRJBIEIRT- A. CARHART, F SYRACUSE, NEW YORK, ASSIGNOB.-TO REMINGTON TYYE- WRITER COMPANY, OF ILION, NEW YORK, A. CORPORATION OFNEW YORK.

'IIYIPIll-WRIITINGA MACHINE.

ASpecification of Letters Patent.

Application led October 184, 1917. Serial No. 197,214. v

To all whom z't may concern:

Be it knownA that I, HERBERT A. CARHART, citizen of the United States,and resident of Syracuse, in the county of Onondaga and State of NewYork, have invented certain y -new and useful Improvements in Type-Writing .Machines of which the following is a specification.

My invention relates to typewriting machines, and more particularly tomeans for automatically bringing.,r one or another of two differentcolor fields of a ribbon into use at a predetermined vpoint or points inthe travel of the carriage.

.One of the main objects of my invention, generally stated, is toprovide improved and efficient means of the character specified.

A further object of the invention is to provide simple and eiiicientdevices that may be readily embodied in existing machines on the marketand operate in conjunction therewith to effect the purposes stated abovewithout modifying the structural features of said machine as they nowexist, otherv than by the'addition of my devices to operate incombination therewith.

Generally stated, my invention is intended to accomplish the samegeneral ends that are attained by the constructions disclosed in thePatents Nos. 878,163; 878,573; 878,574; and 880,591, granted to HerbertH. Steele, and on whichthe present invention may be regarded as animprovement.

The invention in the present instance is embodied in a No. 11 Remingtonmachine equipped with the usual key set denominational tabulator, and inwhich the invention may be readily incorporated without modifying thestructural features of said machine. It should be understood, howeverthat from certain aspects of my invention it may be embodied in variousstyles of machines, and that various changes may be made in effectingsuch embodiment.

To the above and other' ends which will hereinafter appear, my inventionconsists in the features of construction, arrangements of parts andcombinations of devices set forth in the following description and-jtrticularly pointed out in the appended claims.

In the drawings wherein like reference characters indicate correspondingparts in the different views, l

Figure 1 is a fragmentary side elevation,

partly in section, of one form of typewriting machine embodying myinvention, only so much of the machine being shown as may bernecessaryto arrive at an understanding of my invention.

.Fig 2 is a detail fragmentary perspective v1ew of the ribboncontrolling mechanism and some of the associated parts.

Fig. 3 is a fragmentary top plan view of the machine with parts omitted.

Flgs. 4 and 5 are respectively detail side and bottom edge views of oneof the controlling devices or cams.

Figs. Gand 7 are respectively detail side and bottom edge views ofanother and different form of controlling device or cam.

The polychrome mechanism disclosed in the accompanying drawings, asidefrom the means for automatically shifting it during the travel of thecarriage, is the same as that embodied in the No. 11 Remington machine.Such mechanism is shown and described in the patent granted to John H.Barr, Sepamber 11, 1915, No. 1,153,668.

The frame of the machine comprises a base 1, corner posts 2 and a topplate 3. A power driven carriage, designated as a whole by the referencenumeral 4, is mounted on anti-friction rollers 5 to move from side toside of the machine over the top plate. A platen frame 6 is connectedwith Athe carriage by a link 7 and carries a cylindrical platen 8 whichis supported in the usual manner by a shift rail 9 controlled by theordinary case shift means, not shown, to effect a case shift movement ofthe platen frame and platen on the carriage.

Each of the printingkey levers 10 is fulcrumed at 11 in the base of themachine and is provided with a finger key 12. A link 13 connects eachkey lever 10 with a sublever 14, alink 15 forming a connection betweeneach sub-lever and its type bar 16. The type bars are segmentallyarranged and pivoted on a segment or support 17 to swing upwardly andrearwardly to strike against the front face of the platen 8.

A universal bar 18 extends beneath the Various printing key levers 10and is connected at its ends to depending links 19 pivoted at theirupper ends to crank arms 20 which project rearwardly from a rock shaft21 mounted to turn -on pivot screws in the base of the machine. ingcrank arm 22 on the rock shaft is con- Patented July 9, 1918.

A forwardly projectto the rock 4pin on a link 27 connected in the usualman-4 her to the carriage. escapement, not shown. An arm 28 which is inthe nature of a sheet metal plate is adjustably secured to the arm by aset'screw 29 and a pivot screw 30, the adjustment of the arm bem'garound the pivot screw as a center. he plate 1s slotted to receive thestem of a screw 29, whereas the head thereof bears against the plate andholds it in its adjusted position relatively to the arm 25. A setscrevvr 29 is also provided to retain the plante 28 1n the position towhich it may be adjusted relatively to the arm 25. This set screw 29Il1s received in a tapped opening in ,an off-set 'earon the armi 25 and atits lower end enf gages an oil-set shoe 29b carried by the plate 28 andextending beneath the set screw. The upper end of the arm formed by theplate 28 is slotted at 31 where it is received .1n a peripheral groove32 (see Eig. 2) in a sleeve or collar 32'.l that is free toturn andslide -on a cross pin 33 of the ribbon vibrator actuator mechanism to behereinafter described. It will be understood, therefore,

that each depression of l fective to rock the shaft 21, and therebyactuate the ribbon vibrator operating mecha# nism through the cross pin33, and is also effective to actuate the escapement mechanism throughthelink 27. Y

A bi-color inking ribbon 34 may -be assumed to be divided into twolongitudinally extending color fields, a black upper field or stripe aand a red lower field or vstripe b. This ribbon is carried and fedlongitudinally by the usual ribbon spools and associated ribbonmechanism, not shown, and is led upward from the spools through openbings 35 in the top plate, thence over sta-vl tionary guides 36- andthrough guide open,- ings in the head or upper portion of a ribboncarrier or vibrator comprising the usual parallel guide loops 37 risingfrom the body portion 38 of the vibrator.

j Referring to Fig. 2, it will be seen that the lower end of the ribbonvibrator 37, 38 is pivotally connected at 47 to thevcentrally disposedarm 48 of a bell crank lever 49. This lever further comprises adownwardly extending angular arm' 50 and a cross arm or brace 5 1connects the two Aarms and stii'ens the member as a whole. The arm 48divides into two branches which. terminate in ears that iit over a rod52 and bear pivotally thereon, said rod providin a fulcrum for'the bellcrank. The r 52 is mounted on a bracket 53 that is secured. by

A centrally rearwardly therefrom.

a printing key is ef- V77 with the lever f 1,271,eee

screws 54 to the Nshift rail -9 and comprises a portion extendingrearwardly below the shlfty rail and .a forwardly and upwardly inclinedportion which is provided with a tongue or lip 55 into which is threadeda headed shouldered screw 56. This screw serves 'as a uide for theribbon vibrator, the sheet meta body portion 38 whereof is formed with aslot 57 which receives the screw and coperates with the same to guide4the vibrator when it is moved'up and down during printing operations.

he devices'for actuating the operating y lever or member 49 are'mountedon a bracket 58 which, as shown in Fig. 2, is detachably securedby screws 59 to the rear of the type bar support 17. Said bracket has adownward extension 58a slotted to receive one of the screws 59. Theslots in the bracket 58 which receive the screws 59 (only one of whichis shown) are open at their lower ends so that by loosening'the screwsthe bracket, together with the parts which it supports, may bevertically adjusted. Said bracket is provided with rearwardly bentparallel ears 60 which receive a rod 61 on which the vactuating devicesare pivotally mounted.

In the course 61 on the bracket, the parts for which said rod provides apivot are also assembled in place. These parts comprise two actuators orlevers 6,5 and 66 which have a common of the assembling of the rodplvot, being arranged to turn or fulcrum 4 on the rod 61 between theears 60. The lever or member 6 5 isv provided near its lower end withacross portion 67, which yterminates in forwardly bent ears 68, whilethe lever .66 has a cross portion 69 terminating in rearwardly b entears 70. The two sets of ears are perforated sothat the rod 61 may.pass-through them. The cross portions 69 and 67 are ofsuch length thatthe ears 70 j are embraced loosely between 4the -ears 68, while theselatter ears are, loosely confined etween the ears '60 of the bracket 58.The lever 65 is constantly connected with the downwardly extending` arm50 of the operating bell crank by a link 71, while the lever 66 isconstantly connected to the arm 50 by a link 72. The link 71 is abovethe link 72 and at its forward end is pivotally connected, as by ashouldered screw 73, with an ear 74 bent forward from the side of thelever 65 at its upper end. The rear ,end of the link 71 is pivotallyconnected by a shouldered screw 75` with an ear 76 bent rearward fromthe arm 50 about midway of its length. Thelink 72 is pivotally connectedat its forward 'end by a shouldered screw 66, said shouldered screwbeing threaded in Ward from .the'lever 66 somewhat below its lupper end.The rear end of the link 72 is pivotally connected by a shouldered screwan, ear 78 and bent for- Lampes,

79 with an ear 80 bent backward'from the arm 50 at its lower end,vsaidear 80 being at the lopposite side edge of said arm from the ear 76. Thelinks 71 and 72 incline downwardly and rearwardly from their respectivepivotal connections-73 .and 77'so that they are at angles to ahorizontal line passing through these pivots. Said pivots, during theplaten shifting operation, remain stationary since the levers 65 and 66are mounted on a-stationary support. During the shift of the platen therear ends of said links are moved upward, being carried by the operatinglever 49 which is support'- ed from the platen shifting frame. The linksare so disposed that during the platen shifting operation they cross theyhorizontal or media-n lines and at the end of ,said operation are atthe same angle to saidv lines but above them as normally they are belowthem. It will-be observed that as a resultI of the platen shiftingoperation the ribbon vibrator operating lever`49 and the links 71 and 72are moved or shifted, but the elements of the ribbon vibrator mechanismbe-l low said links are not affected by the shift; It will be seen thatthe pair of links 71 and 72 are at all times constarntly connected tothe parts linked together by the links, viz., the arm 50 and therespective levers or actuators 65 and 66. It will also be noted that thetwo key operated actuators or levers 65 and 66 are constantly connectedindependently of each other to the vibrator. While the actuators 65and66 are constantly connected with the operating lever 49, means areprovided for rendering them separately or alternately effective kat willto operate said lever, said means comprising a rocking frame oractuating lever member, designated as a whole by the reference numeral81. The frame 81 is rectangular in shape and comprises a sheet meta-lportion bent into a U- shape and inverted, providing a cross member 82and parallel side portions 83, the

side portions being connected at their lower ends by the cross rod orpin 33 hereinbefore referred to. The side portions are perforated andreinforced with bosses or hubs 85 to iit over and bear both rotatablyand slidably ou the rod 61, being -thus mounted co-axially with theactuators 65 and 66. The upper cross portion 82 of the frame isrectangular in shape. This rectangular part is cut out, providing anopening or slot 86 near the right-hand side, and a smaller opening 87 atthe left-hand forward corner. Between these openings at. the front sideis a triangular lug 88 which approaches closely a lug or thickenedportion 89 at the left-hand rear corner of the frame.

The space between the lugs 88 and 89 provides a narrow7 opening,passageway or throat 90 connecting the slots 86 and 87, and within whichthe upper portion of the levers 65 and 66 are 'adapted to be separatelydisposed or loosely confined when it is desired to render themoperative. The forward edge 91 of the lug 89 is adapted to operate asanactuating surface. The construction is such that by effecting arelative shifting movement between the frame 81 and the actuators 65and. 66, either actuator may be brought within the passageway 90 andthereby rendered operative, being swung forward operatively when theframe is rocked, while the other lever is left free or inoperative. Thusa rocking of the shaft 21 causes the arm 28 to swing the frame 81pivotally about the rod 61 as a center and co-axially with the levers 65and 66, whatever may be the position of said frame endwise of said rod.

In the present instance the relative shift or resetting between theframe 81 and the two actuators is preferably effected by shifting theframe endwise bark and forth on the rod 61 so as to select the actuatorto be operatively vibrated. Thus to shift or variably move the frame 81endwise hand operated means are provided, comprising a link or arm 94curved upward at its inner end and terminating in a forwardly bentportion which engages loosely in a slot formed in a lateral ear 95,projecting outwardly from the left-hand side portion 83 behind the pivot61, so that the vibratory movements of the frame 81 will only slightlyaffect the link 94. The outer or left-hand end of the link or bar 94 ispivotally connected at 96 to the crank arm 97, ixed to and projectingdownward from the rear end portion of a rock shaft 98 extending fore andaft of the machine at its left-hand side. Behind the crank arm the rock`shaft bears in an angular bracket or arm 99 which is secured to thetype bar segment 17. The y forward end portion of the rock shaft'bearsin a plate 101 secured to the leftehand front post 2 of the machine. Infront of the post the rock shaft is provided with a knul-led button orvfinger piece 103. Behind the arm 99 the rock shaft has fixed to it anupstanding spring finger 104 having a head formed with holes 105,. whichare adapted to coperate with a lug or projection 106 on the forward faceof the arm 99, so as hold the rock shaft 98 and the connected parts,including the frame 81, in adjusted or set positions.

Indicating devices are preferably provided for facilitating the properadjustment of the ribbon throw varying mechanism, said devicescomprising suitable indicating marks or colors 107 on the front face ofthe plate 101. A pointer 108 is fixed to the rock shaft 98 to coperatewith these indicating marks. The middle mark 107 corresponds to theupper field a of the ribbon 34 and the lower mark 107 to lower or redfield When the pointer 108 is opposite the middle indicating mark the.shaft 98 will be locked against further turnlng movement in Clockwise.direction by a movable stop usually provided, but whlch 1s not shown inthe present instance. 'When the movable stop is moved to an lnoperativeposition, this permits a further turning of the shaft 98 until thepolnter 108 1s brought opposite the top indicating mark 107, at whichtime the ribbon throw changing parts controlled by the button 103 willbe adjusted so that they will be inactlve at prlnting operations, or,otherwise expressed, will be in` mimeograph position as herelnafter morefully explained. In order positively to limit the dili'eren extents ofthrowing movement of the ribbon, stop devices are provided comprising astop plate 115, which is arranged on the top of the usual spacing plate116, secured to the'upper face of the type bar segment 17. The stopplate 115 is provided with a longitudinal slot 117 which receives aheaded screw 118 by which the plate is adjustably secured to itsstationary support, viz., the segment 17. Therear end of the plate 115is turned down to provide a vertical stop face proper 1151, which isalways in the path of the forward end of the part 82 of the vibratorymember or frame 81 and always arrests said frame at the' same point inits movement.

Assuming the parts to be adjusted as in Fig. 2, it will be understoodthat when a printing key is depressed, the shaft 21 will be rocked asusual and will cause the arm 28, acting on the rod or frame 81 on itsfulcrum. The upper portion of the frame moving forward will actuate thelever 66, Whose upper end at this time is embraced within the passageway90 so that the edge 91 will act to push said lever 66 forward, the lever66 becoming in effect a part of the frame 81. At this time the lever 65will be in the openingl 86 and will be inactive, although it will swingyidly forward as a result of the movement imparted to the operating leverthrough its connection 72 with the lever 66. As a result of thismovement of the operating lever the vibrator will be lifted to interposethe printing portion or field a of the ribbon in thek path of theactuated type bar. The parts are so proportioned and adjusted that whenthe front edge of the part 82 strikes the stop 115, thus positivelyarresting the vibrator andconnected train of actuating devices, theupper edge portion or-ield a of the ribbon will be presented oppositethe printing point. This same extent of movement will be communicated ateach vibratory movement of the ribbon as long as the parts aremaintained adjusted as described, so that the type depressions willfollow a i straight pin 33, to swing the -idly path longitudinally of,and about centrally of, the upperv field a.

When it is desired to use the lower ribl bon fieldb the fngerbutton 103is turned counter-clockwise, acting throu h the shaft 98, crank arm 97and bar or lin i 94, to slide the frame 8l bodily rightward. The framewill fbe maintained in this new position as inthe previous position bythe detent devices 104, 106. Asa resul-t of this adjustment thepassageway 90 will be caused to embrace the upper end of the lever 65,while the lever 66 will be located in the opening 87. Consequently,wheny the frame 81 is actuated during printingoperations the edge 91,acting against the same, and the motion from said levers `Will betransmitted through the link 71 'to the operating lever 49. At the startthe edge 91 will fbe in contact with the lever 66 but the motion of thislever at this time will be so rapid, owing to the fact that it is beingpushed 'by the arm 50 which is being pulled by the link 71, that thelever 66 will move forward away from the edge 91. As before the movementof the parts will be arrested by the contact of the edge of the part 82with the stop 115, but though the movement of the frame 81 is constant,the movement transmitted from it. through the lever 65 to the vibratorwill be' greater than the lmovement transmitted through the lever 66,

for the reason that the lever 65 is longer and transmits a greatermovement to the link 71 .than the lever 66 transmits to the linkv72, andalso because the link 7.1. acts closer to the fulcrum of the operatinglever than does the link 72. The parts are so proportioned and adjustedthat as a result of the longer throw transmitted to the vibrator thelower red ribbon field b will be presented to the types. Both in thisadjustment of the parts and in the prior described adjustment of 4theparts, they will be restored to normal position chiefly by gravity whenthe printing keys are released, although the rock shaft returning spring23 will act on the rock shaft 21 and arm 28, as well as on the universalbar, to restore the parts.

en it is desired to set the parts for mimeographing, the stop member,hereinbefore referred to and which is not shown, is lifted as describedand the linger piece 103 is turned until the pointer 108 is broughtopposite the top indicating mark 107. This movement o-f the rock shafttransmitted to the frame 81 through the described train of connections,will cause the frame to be slid bodily leftward along its fulcrum rod61. As a result of this adjustmentboth levers 65 and 66 will bemaintained simultaneously in the opening 86, so that at printingoperations the frame 81 will be caused to swing lever 65 or 66.Therefore these levers, to-

on its pivot without affecting either' the lever 65, will operate "inglever 49, lwill remair motionless in noragainst the `paper or work sheeton the--V in their path. .l

The riibbon controlling mechanism thus far described -is the same asthat employed -mal -position so that the types may strike platen without.the ribbon being linterposed in the Remington machine, and in'orderthat this mechanism may be automatically controlled to bring one oranother of the two 4 printing fields a and b ofthe ribbon lnto use. fata predeterminedgpoint or points 1n the travel of the carriage, I haveprovided' in conjunction with said mechanism the following means:-Adepending crank 'arm 119 is secured to the shaft 98 and is connected 'bya link 120 to acrank arm 121-which eX- tends forward from an uprightrock-shaftl 122. Thevarm'121 has a lhub 123 which is adjustably securedto the shaft 122'by a set screw 124. This screw is received in' atappedopening in the'hu'b and IIbears at its inner end against the shaft. Thelower end of the shaft is receivedin a bearing opening in an arm 125 ofa bracket 126. This bracket is secured by screws 127 to the base of themachine, only oneof thescrews showing -in Fig. 2. From an inspectionofFig. lit will be seen that the hub 123 receives a bearing on the upperside ofthe .bracket arm 125- and supports the rock shaft 122 and thepart's carried thereby in position, whereas a collar 128 surrounds theshaft beneath the bracket arm and prevents the shaft from being dis'-placed upwardly in its bearing. A set screw 130 which projects from abracket plate 131 secured to the top plate by screws 132. The

upper end of the shaft carries a controlling member which is in thenature of a crank arm 133 fixed on the shaft and extending horizontallytherefrom in the general direction of the travel of the carriage. Theouter end of this arm carries an upwardly projecting antifriction rollerv134, carried on lthe arm by a shouldered pivot screw 135.

' In order to automatically shift the free end of this crank arm 133,either forward or backward at a given point or points in the travel ofthe carriage, and thus automatically cause a change in the use of thecolor field employed, I provide any desired number of tappets or camssuch as are shown in Figs. 4 to 7, inclusive. The tappet or cam,designated as a whole by the reference numeral 136, is shown in det-ailin Figs. 4 and 5. This tappet comprises a fiat sheet metal body portionformed like ordinary column stops with two arms 137 that are adapted tostraddlc a rod or bar 138 and be received in' interdental Aspa-ces 139on :opposite :sides of vthe rod. A spring 140,` `such Vasisusually'employed on column stops, may .begttached to each member 136 toholdl it against accidental displacement from the bar 138. Extendingrearwardly from the body portion of each member 136 is an arm which isbentto form two cam faces 141.and 142 at right angles to each other andinclined to the line of travel of the tappet and, generally speaking,facing away from the body portion thereof. When a member 136 is in\Qperative position on the bar 138, it travels with the carriage, and inthe movement of the latter Afrom right to left the cam face 142, whenbroughtinto engagement with the roller 134, will shift-or cam the freeend of the arm 133 rearwardly from the posit-ion to right the cam face141 on the member 136 will co-act with the roller 134 to shift it out ofits path whenever 4the latter is in the path of such cam, and thuspreventthese parts from obstructing the movement of the carriage.

In Figs. -6 and 7 I have .shown a form of tap-pet or cam .for moving thearm 133 in the opposite direction to automatically shift the mechanismso as to write with 'the black vfield a of the ribbon. This tappetisdesignated as a whole by the reference numeral 143 and the body thereofis constructed like that previously described so that the member may beadjusted to any point along the bar 138. The tappet` 143'has arearwardly projecting arm 144 which at its endis formed with'dependingcams 145 and 146,

disposed at right angles to each other and Iin opposite directionfrom-the cam faces 141 and 142 and, generally speaking, facing towardthe body portion of the tappet. The cams 141 and 142 and the cams 145and 146 on their respective tappets join and form an apex at theirjuncture. In the movement of the carriage from right to left the'camface izo 146 on each member 143, when brought against the rear side ofthe roller 134, will cam the free end of the arm 133 forwardly to theposition shown in Fig. 2.l This causes v a'corresponding movement. ofthe parts controlled by the arm 133 to bring them into the positionrepresented in'Fig. 2 and cause the upper or black ielda of the ribbonto be brought into use. In the returnmovement of the carriage the camface 145 on each member 143 co-acts with the roller 134 From theforegoing description it will be understood that the arm 133 isautomatically shifted in one direction by a cam member 136 and isautomatically shifted in the opposite direction by the cam member 143,and that said arm and theparts controlled thereby are free to, and do,remain indefinitely in either position to whlch they are moved, or untilthey are again shifted by the action of one of said cams to change thecolor fields from red to black, or Vlce versa, or until the mechanism isshifted with the aid of the hand controlled finger piece 103. It isapparent that the detent devices 104-106 tend to hold the parts againstaccidental displacement .from either of the two color selectingpositions to which they may be moved by the cams as well as by thefinger piece 103.

I preferably extend the bar 138 substantially throughout the lengthofthe. carriage and provide indices thereon which correspend to those onthe carriage scale 147, it

being understood that the interdental sp-aces 139 in the bar are atletter spaceintervals.

I prefer to mount the bar 138 directly overV the usual column stop bar148 and support it-at its ends by standards 149 which are carried by thebar 148. Headed screws 150 pass through openings in the bar 138 and arethreaded into the standards 149 and secure the bar to said standards.The column stop bar is in turn secured to the usual arms 151 which arevfixed to and extend rear- Wardly from the carriage.

In carrying out my present'invention I prefer to use it in connectionwith tabulator mechanism, so lthat as the carriage in carrying the worksheet from'one columnar field to the next, under the control of thetabulator, may automatically control the ribbon' mechanism and thecharacters which appear in one column, may be in black, and thecharacters which appear in another column may be in red, and so on.

The usual key set denominational tabulator of the No. 11 Remingtonmachine,

r its entirety, certain features thereof unnec-V which I have shown inthe present instance,

is of a character which precludes its emmodiment with certainautomatically oper' ating ribbon color lshifting mechanism here` toforedevised, but by my present invention I am enabled to readily combine mymechanism to operate in conjunction with said tabulator withoutaffecting the latter or modifying the structural features thereof.

The tabulator mechanism is not 'shown in essary for consideration in thepresent instance being eliminated. The eliminated parts in questionrelate more particularly release the carriage.

,main frame of the machine.

of each denominational stop lever- 162 is.

to the means whereby thecolumn stops are -l returned to normal positionon the column stop bar and to the carriage releasing means. Thetabulator mechanism as shown includes the column-stop bar 148,hereinbefore re ferred to, and on which column stopsr 152 are mounted atletter space intervals tomove arms 155 which project up from the bracketplate 131 hereinbefore referred to. A second crank arm 156 projectsrearwardly from the rock shaft and is connected at its rear end to adepending link 157. The lower end of this link is pivoted at 158 to akey lever 159 fulcrumed on'the fulcrum bar 11 and provided atitsforwa'rd end with a key 160 by which the stop setting member 153 maybe actuated to project the column stop 152 in register therewith tooperative position'. In order to .avoid confusion in the showing thisstop setting mechanism. has been eliminated in Fig. 3. A series ofdenominational stops 161 of the usual construction are formed by theupper ends .of a series of levers 162 pivoted at 1.63 in a tabulatorframe 164 xedly secured to the The lower end pivoted to the rear end ofa link 165, the forward end of each link being pivoted tothedepending'arm of an associated angular lever 166. These levers turnon-a pivot rod 167 which extends -across -the base of the machine and issecured thereto. A finger 168 at the forward end of each angular lever166 extends through an opening in a key stem 169 provided at itsupper-end with a key 170. The usual carriage releasing mechanism, notshown, is operated at each actuation of la denominational key 170 toThis mechanism is the same as .that embodied lin the N o. 11 Remington`machine and further description thereof is deemed unnecessary, it beingunderstood, of course, that a depression of a denominational key 170 iseffected torelease the carriage and project the correspondingdenominational stop 161 into the path of the operative column stops 152,to co-act successively therewith to arrest the carriage.

4Referring particularly to Fig. 3 it will be seen that a work sheet A isshown in place in the machine.4 Such sheets are ordinarily divided bvvertical ruled lines c, whichseparate the different columns. 'In settingthe column stops 152 and the wipers or cams iso 136 and 143 the worksheet may first be introduced into the machine and the column stops setaccording to the different columns determined by the ruledl lines c onthe work sheet. After the column stops have been setas required the'vmembers 136 and 143 may be set in'accordance with the positions of 'theruled lines c on the sheet, and in accordance with the desire of theoperator to write in either red or black in the different columns. Inthe present instance the col-1 umus are indicated on the `sheet by thecharas they are toA appear in the different colappears.

umns as enumerated above, theoperator will bring the first dividing linec to the printing point and observe the p oint on lthe carriage scale147 where such d1v1s1on line In the present instance this will appear at60 on the carriage scale. The operator will then set a wiper 136 at 60on'the supporting bar 138, andin a llke manner the position of each ofthe division lines separating the columns will be determined bysuccessively moving the-.carriage to bring said lines c successively tothev printing point and adjusting the wipers on the bar 138 accordingly.If, as in the present instance, the columns are to be writtenalternately in black and red, then the wipers will be set as representedin Fig. 3 with a wiper 136 located at the point 60 on the bar 138, thispoint corresponding to the position of the division line c between thefirst and second columns on the sheet. The next wiper to the right islocated at SO on the last wiper 143 to the right is for shifting to theblack field, and so on these wipers may be arranged indefinitelyaccording to the colors to be Written in the individual columns. l Justto lthe left of the left-hand In the operation of the machine theoperator will proceed to write in the first column d in the usualmanner, and the characters will appear in black. When the wrlting inthis column ,.is completed the operator willpress the requisitedenominational key 170 to bring the work sheet v in -the properdenominational [positions to' start the writing in the second column e.During this movement of the carriage the cam face 142 on the first ofthe wipers 136 will be brought into coperation with the roller 134 andshift the arm 133 rearwardly, thus actuatlng the intermediate trainofdevices between the arm 133 and the shifting frame 81, .causing thelatter to be shifted to the i right/'from the position shown in Fig. 2,and anywrlting which appears in the second column will be produced inred. After the .work in this column is completed the operator will pressthe requisite denominational key 170. As the carriage is moving to bringthe third column f to the proper position opposite the printing point, acam face 146 on the wiper 143 situated at .80 on the bar 138 will shiftthe crank armA 133 forwardly and thereby move said arm and the partscontrolled thereby tothe position shown in Fig. 3 so that any writingwithin the third column will appear in black. And so von the fields tothe printing point. It will be understood that in the return movement ofthe carriage from left to right the arm 133 will be shifted eitherbackward or forward vby the cam faces 141 and 145 '-respectively, whenthe roller 134 is in the path of said cams. the wiper located at 60 onthe bar 138 would leave the arm 133 and the parts controlled thereby inposition to write in red, and writing would'appear in red in the firstcolumn where it is intended it should appear in black. It is for thisreason that one of the Wipers 143 is located just to the left of thefirst of the wipers 136. Itwill be understood that immediately after thewiper 136 situated at the point 60v on the scale passes to the right ofthe roller 134 the cam face 146 on the wiper 143 just to the.

left thereof will vshift the arm 133 so that any writing which appearsin the first column will be written in black. -Y

Should the operator desire to print in red in thel second, third andfourth. columns,

' for example, it is merely necessary to shift the wiper 143 situated atS0 to the dotted line position represented in Fig. 1. Said wiper wouldthen be inoperative on thevcontrolling member 133 and saidl controllingmember would not be' shifted until the last wiper 143 to the rightreaches the roller 134. In a like manner any or all of the wipers may beshifted on the carrying bar 138 to the inoperative position. In thismanner any individual wiper may be rendered inoperative or all of themmay be rendered in- As the carriage moves to the lright 1 lio operativeshould it' be desired to'thriow` the automatic ribbon color shiftingmechanism out of operation.

Various changes may be made without departing from the spirit andscopeof'my invention and certain features thereof may be e Aemployed'without others.

What I claim as newfand desire to secure by Letters Patent2 is: n 1. Inav typewriting machine, the combination of a carriage; shifting meansfor.

one or another of two differentbringin color fie ds of 'a ribbon intouse; and'means operating automatically at a plurality of predeterminedpoints in the travel of the carriage in one direction vto actuate saidshifting means, said automatically operating means comprising acontroll-ing member shiftable in opposite directions and free to remainindefinitely at the'limit of its movement in either direction, andmeans, for moving said controlling member first in one direction andthen in the opposite direction durin the travel of the carriage 1n onedirection.

2. In a typewriting machine, the combination of a carriage; shiftingmeans for bringing one or another of two different color fields of aribbon into use; and means operating automatically at a plurality ofpredetermined points in the travel of the carriage in one direction toactuate said shifting means, said automatically operating meanscomprising a controlling member shiftable in opposite directions andfree to remain indefinitely at the limit of its movement in eitherdirection, and a'plurality of tappets carried by the carriage andoperative successively on said controlling'member to move it first inone direction'and then in the opposite directionduring the travel ofshiftable in opposite directions and free to remain indefinitely at thelimit'of its movementin either direction, and cams carried by thecarriage and operative successively on said controlling member duringthe travel of thecarriage in one'direction tomove said controllingmember first in one direction and then in the opposite direction.

' 4. In a typewriting machine, the combination of a carriage; shiftingmeans for bringing one or another of two different color fields of aribbon into use; and means operating automatically at a plurality ofpredetermined points in the travel -of the carriage. in one direction toactuate said shifting means, said automatically operating meanscomprising n avv controlling member shiftable -in opposite directionsand free to remain' indefinitely at the limit of its movement in eitherdirection, a plurality of tap'- pets lcarried by the carriage andoperative successivelyA on said controlling member to move it first inone direction and then in the opposite direction' during the travel ofthe carriage in one direction, and means for affordin an adjustment ofsaid tappets substantia ly throughout the length of the'carriage. v

5. In a typewriting machine, the combination of a carriage; shiftingmeans for' bringing one or another of. twol different color fields of aribbon into use; and means `operating automatically during the travel ofthe carriage to actuate said shifting means, said automaticallyoperating means comprising a controlling member shiftable in oppositedirections and free to remain indefinitely at the limit of its movementin either direction, and oppositely disposed cams coperativesuccessively with said controlling member during the travel ofl thecarriage to move the controlling member` first in one direction and thenin the oppo-l site direction, each cam when in coperative relation. withthe,.controlling member being effective to move it whether the carriagebe moving from right to left or from left to right.

6. Ina typewritingV machine, the combination of a.carriage; shiftingmeans for bringing one or another of two different` color fields of -aribbon into use; and means operating automatically during the travel ofthe carriage to actua-te said shifting means, said automaticallyoperating means comprising a controlling member shiftable in oppositedirections and free toremain indefinitely in either of the two'positionsto which it may be shifted, and a. pluralityl of separate and distincttappets one of which is operative on the controlling member only 1whenthe latter is shifted to one of said positions, another tappet beingoperative on said controlling member only when the lat- -ters is in theother of said positions.

7. In a typewriting machine, the combination of a carriage; shiftingmeans for bringing one or another of two' different color fields of aribbon into use; and means operating automatically during the travel ofthe carriage to actuate said shifting means, said automaticallyoperating means comprising a rock-shaft connected with said shiftingmeans, a crank arm carried by said rock shaft, and a plurality ofseparate and dis` tinct tappets' one of which is operative on the crankarm to turn the rock shaft'in one direction and another of which tappetsis operative o n the crank arm to turn the rock shaft in the oppositedirection.

8. In a typewriting machine, the combinacams one of which is operativeto cam the crank arm in one direction and rock the shaft in the samedirection and another of which is operative to cam the crank arm in theopposite direction and rock the shaft correspondingly, and means foraffording an adjustment of said cams to different points along thecarriage.

9. In a typewriting machine, the combination of a carriage; shiftingmeans for bringing one or another of two different color fields of aribbon into use; and means operating automatically at a plurality vofpredetermined points in the travel of the carriage in one direction toactuate said shifting means, said automatically operatmg meanscomprising a controlling member shiftable in opposite directions andfree to remain indefinitely at the limit of its movement in eitherdirection, and a plurality of separate and distinct tappets, one ofwhich is operative on the controlling member only when it is at thelimit of its movement in one direction, another 'tappet being operativeon said controlling member only when the latter is at the limit of itsmovement in the opposite direction. A

1Q. In a. typewriting machine, the combinatlon -with the ribbon shiftingmechanism, of a traveling sheet metal tappet provided with a cam, theeffective face of which is inclined to the line of travel of the tappetand co-acts with said shifting mechanism to effect an actuation thereofby a camming action thereon.

11. In a typewriting machine, the combination with the ribbonshiftingmechanism, of a traveling tappet provided with two oppositelydisposed cams and each of which is coperative with said shiftingmechanism for actuating it.

12. In a typewriting machine, the combination with the ribbon shiftingmechanism, of a traveling tappet provided with two cams at right anglesto each other and each of which is coperative with said shiftingmechanism for actuating it.

13. In a typewriting machine, the combination with a ribbon shiftingmechanism,y

two traveling tappets, one tappet provided with a cam for actuating saidshifting mechanism in one direction and the other tappet being providedwith a cam for shifting said mechanism in the opposite direction.

14. In a typewriting machine, ythe combination with ribbon shiftingmechanism, of a pair of traveling tappets, one tappet provided with twocams for actuating the shifting `mechanism in one direction and theother tappet provided with two cams for actuating the shifting mechanismin the other direction. 4

15. A bifurcated sheet metal tappet, one leg of which is provided with alateral eX- tension having two integral cams arranged at substantiallyright angles to each other and joined to form an apex at their juncture.

Signed at Syracuse, in the county of Onondaga and State of New York this15th day of October, A. D. 1917.`

HERBERT A. cARHAR'r.

